2015 GMC SIERRA 1500 Complaints

I WAS WARMING THE TRUCK UP IN THE MORNING WITH THE AUTO START, PARKED, AND HAD THE AUTO DEFROST TURNED ON FOR THE REAR. WHEN I ENTERED THE TRUCK AND CLOSED THE DOOR THE REAR PASSENGER WINDOW THAT IS FACING THE BED, SHATTERED. I'M ASSUMING THE DEFROST IS RUNNING TOO HOT AND WEAKENED THE GLASS OR SOMETHING RELATED TO THE ISSUE. I KNOW OF SEVERAL OTHER PEOPLE THAT HAVE THIS PROBLEM AS WELL. HTTPS://WWW.GM-TRUCKS.COM/FORUMS/TOPIC/209824-2017-SIERRA-DENALI-REAR-WINDOW-EXPLODED/?PAGE=5

PAINT PEELING DOWN TO PRIMER COAT IN VARIOUS AREAS ON THE TRUCK. NOT CHIPS, DENTS OR DINGS. THIS IS PAINT FAILURE.

PROJECTOR STYLE HEADLIGHTS THAT CAME FACTORY ARE TOO DIM MAKING IT VERY DIFFICULT TO DRIVE AT NIGHT AND UNSAFE. LIGHTS ARE NOW POWERFUL ENOUGH TO LIGHT UP THE ROAD.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. WHILE DRIVING AT LOW SPEEDS OR WHEN THE GEAR SELECTOR WAS IN REVERSE, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD. THE CONTACT MENTIONED THAT THE FAILURE OCCURRED PERIODICALLY. THE VEHICLE WAS TAKEN TO EVERETT BUICK GMC (21115 I-30 FRONTAGE RD, BRYANT, AR 72022, (501) 303-4393) TO BE DIAGNOSED, BUT NO FAILURE WAS FOUND. THE DEALER STATED THAT THE BRAKES WERE "PERFECT". THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VIN WAS NOT PROVIDED. THE FAILURE MILEAGE WAS 45,000.

REAR POWER SLIDING WINDOW IMPLODED AFTER REAR WINDOW DEFROSTER WAS ON FOR LESS THAN 10 MINUTES. CAR WAS IN MOTION AT HIGHWAY SPEED WHEN A SOUND LIKE A RIFLE SHOT OCCURRED FOLLOWED WITH A CLEAR SOUND OF AN AIR LEAK INTO THE CAB. OUTSIDE TEMPERATURE WAS 25 DEGREES.

I WAS DRIVING DOWN A HILL AT ABOUT 15 MILES AN HOUR AND WHEN I WENT TO PRESS THE BRAKE PEDAL I HEARD A NOISE AND THE BRAKE PEDAL WENT TO THE FLOOR AND TRUCK WOULD NOT STOP. I HAD TO SWERVE OFF THE ROAD TO AVOID A COLLISION. AFTER, THE BRAKE PRESSURE RETURNED WHILE DRIVING, BUT WHEN STOPPED IT WOULD LOSE PEDAL FEEL AND GO BACK TO THE FLOOR. AFTER READING ARTICLES IT WAS OBVIOUS THE VACUUM PUMP WAS FAILING. I LIMPED THE TRUCK HOME AND TOOK IT TO THE DEALERSHIP AND AM WAITING TO HEAR BACK.

THERE IS A KNOWN BRAKE PROBLEM CAUSED BY FAULTY VACUUM PUMP. WITH THE VACUUM PUMP FAILING THERE WILL BE LOSS OF ASSISTED BRAKING. SOME PEOPLE HAVE NOTED REQUIRING 2 FEET TO STOMP ON THE BRAKES TO STOP THE TRUCK. THE DANGEROUS BRAKING PROBLEM SEEMS TO HAPPEN DURING LOW SPEEDS. SOME MEMBERS ON THE FORUMS HAVE MENTIONED GETTING INTO ACCIDENTS. GMC DOES NOT COVER THE VACUUM PUMP UNDER THEIR WARRANTY WHICH IS RIDICULOUS. I HAVE LISTED SOME FORUM THREADS AS PROOF OF NOT JUST ME HAVING THIS ISSUE. HTTPS://WWW.SILVERADOSIERRA.COM/ECOTEC3-5-3L-V8/BRAKE-BOOSTER-VACUUM-PUMP-FAILURE-T686609.HTML HTTPS://WWW.SILVERADOSIERRA.COM/BRAKES/ROCK-HARD-BRAKE-PEDAL-2014-LOW-SPEED-T595097.HTML HTTPS://WWW.GM-TRUCKS.COM/FORUMS/TOPIC/204871-VACUUM-PUMP-GOING-OUT/ HTTPS://FOX6NOW.COM/2018/11/23/GM-UNDER-INVESTIGATION-FOR-FAULTY-BRAKE-VACUUM-PUMPS/ EVEN THE GOVERNMENT IS INVESTIGATING.

IT STARTED HAPPENING A WEEK OR SO AGO WHERE WHEN IN REVERSE OR AFTER SWITCHING FROM REVERSE TO DRIVE AND TRYING TO BRAKE THE PEDAL WOULDN'T COMPRESS, IT WAS AS IF THEY WERE LOCKING UP ON ME. I WOULD HAVE TO PUT MOST OF MY BODY WEIGHT ON THE PEDAL TO EVEN GET THE TRUCK TO STOP, TO THE POINT WHERE I ALMOST RAN INTO MY NEIGHBORS CAR BACKING OUT OF THE DRIVEWAY. IT SEEMED TO MAINLY HAPPEN AT SLOWER SPEEDS, IN BOTH DRIVE AND REVERSE AS IT HAPPENED ON MORE THAN ONE OCCURRENCE. LUCKILY I DECIDED TO TAKE IT TO THE GMC DEALER BEFORE ANYTHING SERIOUS HAPPENED, BUT THIS IS A HUGE SAFETY CONCERN AND I FEEL IT NEEDS TO BE ADDRESSED. THE DEALER ALSO KNEW EXACTLY WHAT THE ISSUE WAS BEFORE I COULD GIVE THEM ANY INFORMATION, SO IT SEEMS LIKE THIS IS A COMMON PROBLEM. THEY REPLACED MY VACUUM PUMP AND WE WILL SEE IF THAT FIXES THE PROBLEM.

BRAKE PUMP WENT OUT ALMOST RAN INTO A POLE. READING ONLINE AND SEE A LOT OF PEOPLE HAVING THE SAME PROBLEM. ANGRY!!

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. WHILE DRIVING 7 MPH, THE VEHICLE STALLED AND THE SERVICE STABILITRAK WARNING INDICATOR ILLUMINATED. THE CONTACT MOVED THE GEAR SHIFTER INTO NEUTRAL AND WAS ABLE TO COAST THE VEHICLE TO THE SIDE OF THE ROAD. THE VEHICLE FAILED TO RESTART. THE CONTACT CALLED CLASSIC CHEVROLET SUGAR LAND AT (281) 969-4132 (LOCATED AT 13115 SOUTHWEST FWY, SUGAR LAND, TX 77478) AND WAS INFORMED TO CHECK THE BATTERY. THE VEHICLE WAS RESTARTED AND WAS ABLE TO DRIVE NORMALLY; HOWEVER, THE FAILURE RECURRED THREE TIMES. IN ADDITION, THE AIR BAG WARNING INDICATOR ILLUMINATED AND THE PARK ASSISTANCE BUTTON WAS COMPLETELY DISABLED. THE VEHICLE WAS TAKEN TO CLASSIC CHEVROLET SUGAR LAND WHERE IT WAS DIAGNOSED THAT THE GROUND G218 CAUSED A LOW VOLTAGE TO THE BODY CONTROL MODULE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND PROVIDED CASE NUMBER: [XXX]. THE APPROXIMATE FAILURE MILEAGE WAS 91,000. PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).